Feed mechanism for cutting-machines.



J. MoCOY & S. A. GOPENHAPER.

FEED MECHANISM FOR CUTTING MACHINES. APPLICATION FILED JUNE 16, 1913.

1,087,802., Patented Feb. 17, 1914.

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APPLICATION FILED JUNE 16, 1913.

COLUMBIA PLANOGRAPH 10.. WASHINGTON, D. c.

J. McGOY & s. A. GOPENHA PER. FEED MECHANISM FOR CUTTING MACHINES.

APPLICATION FILED JUNE-16, 1913. 1 0 7 02 Patented Feb. 17, 1914.

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APPLICATION FILED JUNE 16, 1913. I

' Patented Feb. 17, 1914.

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J. McGOY & S. A. OOPENHAPER. EEED MECHANISM FOR CUTTING MACHINES.

APPLIGATION FILED JUNE 16, 1913.

. Patented Feb. 17,1914.

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COLUMISIA PLANOQRAPH COnWASYflNCINN, D. c.

JOHN MGCGY AND STEPHEN A. COPENHAFER, OF YORK, PENNSYLVANIA.

FEED MECHANISM FOR CUTTING-MAGHINESi nesasoa.

Specification of Letters Patent.

Patented Feb.17, rem.

Application filed June 16, 1913. Serial No. 774,058.

To all whom it may concern:

Be it known that we, JOHN McCoy and Srnrnnn A. Cornm-mrnn, citizens of the United States, residing at York, in the county of York and State of Pennsylvania, have invented certain new and useful Improvements in Feed. Mechanism for Cutting- Machines; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for cutting and punching sheets, and more especially to mechanism for feeding the work transversely of the cutting machine; and the object of the same is to ell ct certain im provements in the machine described in our pending application Number 686,689, liled liliarch 2?, 1912.

To this end the present invention consists in actuating the worlnfeeding and drawing mechanisms by power instead of by hand, in means for manually retarding the feed mechanism temporarily, in means for manually :nicelerating the drawing mechanism temporarily, in means for permanently increasing or diminisl'iing the throw of said mechanisms, in manual control mechanism for eiiecting said permanent change, and in a peculiar means for adjusting the position of a wrist pin within a crank wheel which terms part of this mechanisn1all as hereinafter more fully described and claimed and as shown in the drawings wherein Figure 1 is afront elevation partly in ..'ection of this complete machine; Fig. 2 is a plan view thereof, also partly in section. llig. 3 is an enlarged side elevation of the feeding mechanism forming part of this machine, taken about on the section line 3-3 of Fig. 4t; and Fig. 4 is a plan view of said feeding mechanism, partly in section. Fig. is a central vertical sectional view 0t said feeding mechanism, taken on the line 55 of Fig. 4; and Fig. 6 is a vertical section on about the line 6 6 of Fig. 3; while Fig. T is a rear elevation of this portion of the machine complete. Fig. 8 is a plan view, partly in section, giving a detail oi the wrist pin adjusting mechanism; F 9 is a similar view of that portion shown at the left of Fig, 8, with the parts in a diii'erentposition; and Fig. 10 is a sectional detail on the line 10-10 of Fig. 8. Fig. 11 a detail in elevation of the adjusting pinion and the rack-frame inclosing it; Fig. 12 is a sectional detail on the line 12*12 of Fig. 8; Fig. 13 is an enlarged section of the ratchet wheel 011 the line 13-13 of Fig. 6; Fig. 14: is a cross section of this ratchet wheel on the line 14.14: of Fig. 13; and Fig. 15 is a sectional detail on the line 1515 of Fig. 6.

In our prior application above referred to we have illustrated and described many features of this machine which are common to that set forth below, but on which no claim is made in the present application. This is an improvement on our former machine mainly to the extent that all the mechanism is power driven and all the adjustments are manual.

The machine comprises a supply roller SE at the inlet end, a feed apron FA on which the paper is fed forward to a tension device T, and from the latter it passes next through a feed mechanism F which delivers it to the treating machine herein described as a. cutter although of course it might be mechanism for printing, embossing, or otherwise treating the paper, From this treating machine the product next passes through a drawing mechanism D, and is delivered onto a drawing apron DA, and at the outer or rear end of the latter it is wound onto a receiving reel RR by hand or by machinery preferred.

While it will hardly be necessary to go into detail as to the construction of the vari ous mechanisms just referred to and snown on the drawings, it will be well to explain that the paper strip P passes from the supply roll SR over a drum 1 and under aroll 2, thence under a curtain 3 onto the upper side of the feed apron FA which moves over rollers as usual and is driven from a belt 5; and when the plaits of the paper which are carried forward by this apron are taken up again near its inner end, they pass under a second curtain 6 and through a tension clevice 'l which by preference consists of a series of rollers t mounted in hearings or supports 15' and disposed side by side so that the strip passes over one roller and under the next, and so on, as best seen in Fig. (l. Thence the paper passes through a feed mechanism which broadly includes a driving drum 7 and two ironing rollers 8 to iron or smooth out the paper before it passes to the treating mechanism herein shown as a cutter. On the other or rear side of the latter the paper is drawn off the bed and platen of said mechanism by the drawing mechanism D, whence the paper passes under a curtain 11 and over the drawin apron DA, thence between guides 12 as it comes off the rear end of this apron, and finally is wound onto the receiving reel RR which in the present instance is illustrated as turned by a crank handle 13. As illustrated in the drawings herewith. the rollers 8 have their spindles 8 mounted loosely in upright slotted or forked bearings 8", and so also the rollers 10 have their spindles 10 mounted in slotted bearings 10 whereby either roller rests by gravity on the drum beneath it. In Fig. 6 we have shown two rollers 8, S, and two rollers 10, 10, but obviously we do not wish to be limited to the precise number in either the feeding mechanism F or the drawing mechanism D. Certain rollers of the aprons are connected by a belt 1st so that they move in unison. The drawing mechanism is preferably so geared that it moves a trifle faster than the feeding mechanism, with the result that the paper is drawn quite taut across the platen of the treating mechanism, for the reason that the presence of the tension mechanism'T in addition to the feed mechanism F at the front side of said platen eXerts a stronger draft on the paper at this side than at the other or rear side, and there fore the paper will slip through the drawing mechanism D whereas it will not slip through the feed mechanism F. The paper is perforated or printed with holes or dots 15 corresponding with the figure being repeated upon its surface, and the head of the treating machine is provided with adjustable points 16 as in our former application and for the same purpose, viz: to enable the operator to ascertain when the figure on the bed or platen 17 which in the present case carries the female die, is directly under the male die 18 above it. These dies will be replaced by others when the figure printed on the paper is different, because obviously the cutting dies must correspond with the matter printed if as in the present caseit is the purpose of the treating machine to trim off the margin of a wall paper border or frieze as shown at the right end of Fig. 2. By preference we take coarse paper 19 from a roll at the rear end of the machine and wind it with the finished product on the receiving reel RR so as to protect the ornamental edges thereof as usual.

No claim is to be made in the present application for the parts thus far described, but whereas the feeding and drawing mechanisms in the former case were actuated by hand, we propose new to move them by power and to control their movements, and the following specification sets up our preferred manner of accomplishing this end.

In the present instance power is communicated through a belt 20 to a pulley 21 on a power shaft 22 journaled in bearings at the rear end of the framework as bestseen in Fig. 5, and this shaft has a power pinion 23 meshing with gear 24 on a crank shaft also journaled in bearings in said framework across the rear end thereof. With the crank 26 of said shaftis connected a rod whose lower section 27 is tubular and in ternally threaded and whose upper section 28 is tubular and internally threaded in a reverse direction; and these threadedsections are connected by a right-andleft screw 29 having at its center a hand wheel 30 by means of which it may be turned in one direction or the other to increase or decrease the length of the connecting rod. The upper end of the upper section 28 of the latter is connected with a walking beam 81 pivoted at at the upper end of a pair of links 33 whose lower ends are pivoted at at to the bed of the framework as shown in Fig. 5. The forward end of the walking beam 31 is pivotally connected at 35 with the stem or shank 38 of the die 18, whose construction needs no description herein further than to say that the die plate will be detachable as already suggested. Thus it will be seen that power communicated through the belt 20 rocks the walking beam over the main pivot 34; and causes the vertical reciprocation of the die with the result in the present instance that the waste edge is trimmed off of the paper P. The turnbuckle arrangement at the center of the connecting rod is for the purpose of lengthening or shortening the same as the exigencies of the case may require; and the speed vith which the entire machine operates may be controlled by the running of the belt 20, although it will be clear that the feed of the paper to the cutting dies and the drawing of it away from them when out must keep pace with the impulses of the die, whether the entire machine runs slowly or rapidly.

It is well known to those familiar with this art that the figures printed on a line wall paper border or frieze are extremely intricate at times, though usually limited in length as suggested above, and it is the custom to repeat such a figure along the paper before the latter is cut. The present machine is intended for cutting off waste along the lower edge of a border, and therefore the dies will correspond with the outline along the lower edge of the prii In order to make a neat job it is om'iousgv necessary tl at th dies should register accurately with said outline at all times. so that the outline which is cut shall not he in advance of or in rear of the outline printed. Having in mind the well known tendency of paperespecially after it has been printed in perhaps two or three col ors to shrink, stretch, warp, and otherwise be- I means be employed for driving the feed come distorted, it will. be clear that although the feeding and drawing mechanisms are timed to advance the paper over the platen between the strokes of the male die List the distance of one of the figures being cut, the rape at times needs temporary acceleration or it needs to be tempora 'ily retarded as when the operator observes that the fig ure is falling behind or is advancing too rapidly. In this he is guided by the dots coming under the point. 1.6, as well as by his experience. In order, therefore, to provide means for temporarily accelerating or retarding the feed of the paper being cut, we have extended the shaft d0 of the drum 7 of the feed mechanism F and provided its front end with a hand wheel all and we have extended the shaft 42 of the drum 9 of the d 'awing mechanism l) and provided its front end with a hand wheel 43 these hand wheels standing at the front of the machine and at opposite sides of the framework which supports the cutter. Here the oper: tor stands to run the work, and when he finds that the paper is lagging behind trifle he places his right hand on the accelerating hand wheel f3 and impels it to the right so that the drum 9 d r; ws the paper over the platen yet a little farther than it would be mechanically drawn in the manner hereinafter described On the other hand, when he finds that the paper is being mechanically fed a little too rapidly, he places his left hand on the retarding hand. wheel il-l. and retards the feed mechanism i so that the paper slips a little more than usual between. the drum 9 and the gravity rollers 10, 10. This manual and temporary means for accele'ating or retarding the paper a little, we find to be extremely usefid in a machine of this kind beiause of the varia tions in the paper which are due to causes not necessary to elaborate at this point. Attention is directed to the fact that this manual con rol of the feed is independent of the retarding action set up on the paper by means of the tension. mechanisn'i 'l, for of course the tension can be set to exert a greater or lesser pressure according as conditions *arf', and this manual control is also irrespective and independent of the slight difference in speed between the action of the drawing mechanism and that of the feed mechanism and which difference is for the purpose of pulling the paper taut where it overlies the platen 1i". T he apr 115 llir and DA serve only the functions set forth in our former application, and they are driv-n in unison by means of the connetting belt ht, whereas the driving belt 5 will by preference be led to a power pulley ll; (or sprocket if the belt 5 he a chain) which can well be mounted fast on the rear end of the shaft 4 of the drum 7. if this apron, its movement will be timed to cor-- respond with the feed of the paper through the feed mechanism F, whether the progress of the paper thence across the platen is ac- (.QlQl'llfGtl or retarded.

In order that the feeding and drawing mechanisms may be power driven from and by the same source which drives the cutting mechanism, we make use of the following construction: On the r ar end of the shaft l0 is a gear (see Figs. 4 and 7) which gear meshes with another gear 51 on a cross shaft 52, and the latter carries a bevel gear 53 meshing with another bevel gear he; on a shaft 55 disposed beneath the bed or platen 17 and seen in Fig. 1. The other or right end of this shaft carries another bevel gear 56 meshing with a bevel gear 57 on a power shaft 58 (Fig. 3) whose rear end carries a gear 59 meshing with another gear 60 on the rear end of the shaft Thus it will be seen that when the main shaft 55 is turned in the direction of the arrow in t, both shafts a0 and and the drums carried thereby will be turned simultaneously, al.- though the rollers S and 10 above the respective drums will be turned at slightly differ ent speeds, owing; to the difference in si/.e of the gears 61. and 62 by means of which they are driven from the drum, and which. difference results in the smoothing out of the paper over the platen in the manne' above described.

lVhile any suitable mechanism n'rty be employed for imparting a step-by step rotary motion to the main shaft 55, we prefer to use that best seen in li igs. 3, 13, 1.4, and 15. On said shaft is keyed a ratchet T0 engaged by pawls 71 within a toothed rim 79 which is loosely mounted around the ratchet be tween a flange 78 a one side thereof and a face plate H on the other side, held to its hub by suitable means such as screws [5; and itis obvious that movement of the toothed rim in the direction of the arrow in Fig. 13 will turn the 'atchet wheel and therefore the shaft where: s said rim may be turned in the opposite direction without rotating the shaft. The latter is held against retrogninle movement by any suitable means, but in 15 we show a strap attached at (36 to the frame and passing over the shaft and. held in frictional contact therewith by a weight 6T so as to exert a baking action thereon. For tinfnine,- the rim 72 we preferably make use of a toothed. sector 76 pivoted at T7 and having rigidly projecting from its pivotal point an ar n 72% from whose outer end ds a connecting; rod T9 to a crank wheel on the shaft and therefore each time. the latter revolves the crank depresses said ar: 78 and moves the sector to turn the rim, the ratchet, and the shaft 55 and devices carried thereby to an extent dependent upon the distance of the rist pm of said crank wheel from its axis. This distance, and hence the throw of the crank, cannot be fixed, because the figures reproduced in the paper being cut will vary in length as clearly understood; and for a longer figure the throw of the crank must be greater, whereas for a shorter figure the throw must be less accordingly we provide means for adjusting the throw of the crank by moving said wrist pin from or toward the axis of the wheel. The means we preferably employ for adjusting the position of the wrist pin at this point will now be eX plained.

its best seen in Figs. 3 and 8 to 12, a comparatively large wheel 80 is mounted on the right end of the shaft 25, and diametrically across it extends a channeled bar producing a pair of guides 81 within which slides a block 82 carrying the wrist pin 83 whereon the connecting rod 79 is pivoted as seen in Fig. 12. Swiveled as at 8% in the rim of the wheel 80 is a rod 85 which is threaded throughout the major portion of its length, and the threads 80 engage a threaded hole within the block 82 so that the turning of this rod in one direction or the other moves the block away from or toward the axis of said wheel and therefore adjusts the length of the crank because such movement moves the wrist pin 83 as will be clear.

The screw might be turned by hand but for the fact that the wheel 80 is rotated rapidly, and therefore means must be provided for turning the screw in one direction or the other without stopping the rotation of the wheel. Accordingly we secure a bevel gear 87 to the rod 85 as seen in Fig. 8, this gear being in mesh with another bevel gear 88 which fast on a stub shaft 89 journaled at its inner end in a block 90 which embraces the rod 85 and at its outer end is the center of a U-shaped yoke 91 whose feet are secured at 92 to webs formed on the guides 81, the latter being slotted to permit the pasof the bevel gear 8? and the stub shaft On the latter beyond said guides is fixed an adjusting pinion 93. the same traveling around the axis of the wheel 80 and through a rack frame best seen in Fig. 11. Said frame comprises top and bottom bars connected at opposite ends by an inner rack 0i and an outer rack 05, both struck on arcs around the center of the wheel 80 and having teeth on their contiguous faces but spaced apart a greater distance than the di ameter of the adjusting pinion 03see Fig. 11. This frame is carried at tl inner end of an arm 90 which is pivoted at 9? to the bed of the machine as seen in Fig. d, and which moves between guides 98, and attached to the uppermostguide is a U-shaped spring 99 whose arms project toward the device just described and stand between studs 100 and 101 which rise from the arm 90. The normal tendency of this spring 99 is to hold said arm in the position best seen in Fig. 8, whereby both racks 9% and 95 are out of engagement with the pinion 93 and the latter may pass between them as the wheel 80 rotates, but when the arm 96 is moved in one direction or the other, one rack or the other is thrown into engagement with the teeth of said pinion 93 in a manner which will be clear. Connected with said arm at the point 102 is a rod 103 which leads thence forward through or beneath the bed of the machine and is connected with a hand lever 10% pivoted at 105 to an ear 106 projecting from the front of the machine as best seen in Fig. 8, and readily accessible to the operator as seen in Figs, 1 and 2. lVith this construction of parts, when the operator grasps this handle and pushes the rod inward, he swings the arm 96 to the position shown in Fig. 9 so that its outermost or forward stud 100 bears against the front arm of the spring 09 and the outermost or front rack 95 is swung into mesh with the adjusting pinion 93 the next time said pinion is carried between the two racks by tie revolution of the wheel 80. This causes said pinion to be turned for as many teeth as there are teeth in the rack which it engages, and the rotation of the pinion turns the stub shaft 89, bevel-ed gear 88, beveled gear 8?, and screw 86, while the rotation of said screw adjusts the length of the crank by moving the wrist pin 83 outward or inward as has been described. It follows that the operator may thus lengthen or shorten the crank at will, and having usted its length he will release the hand lever so that the length of the. crank will remain adjusted. It will be clear that if the wrist pin be set quite remote from the axis of the wheel 80, the sector '76 will be swung through a considerable are at each rotation of said wheel, and the ratchet mechanism (Fig. 13) will cause a considerable turning of the main shaft and a corresponding considerable turning of the feeding drum 7 and the drawing drum 9. However, we do not wish to be limited to this precise means for adjusting the throw of the crank, because any suitable mechanism may be substituted therefor. We have found in practice that it is quite convenient to have a hand lever 10& within ready reach of the operator so that, if he finds the temporary accelerating or retarding of the feed is not sufficient to put. the dies in step with the figure as it were, he can effect a permanent increase or decrease of the throw of the crank and hence the length of the step of the feed, as for instance in case the entire roll of paper has become slightly stretched. lVe say permanently in this connection, but. in some cases it might happen that the outside of a roll of paper has become stretched and the inside has not; our purpose is to diiferentiate between the mechanisms for increasing or diminishing the throw and for accelerating or retarding the feed.

When a new roll of wall paper is fed to the machine, having a different pattern so that. a new pair of dies must be put into the cutter, the throw of the feed will have to be set accordingly as the points or dots 15 on the paper strip P will indicate; and for this purpose the shaft 85 is projected through the rim of the wheel at one end and squared as at 85 so that the operator may place a crank thereon and rotate the shaft and screw 86 rapidly. if, however, the adjustment is but trivial and is to occur while the machine is idle, it is quite obvious that the operator can grasp the pinion 93 and turn it by hand, excepting possibly at the moment when it stands within the rack frame as seen in Fig. 11. The purpose of the construction employed here and elsewhere throughout the machine is, as far as possible, to keep the operator from putting his hand on any greasy part of the machinery.

W hat is claimed as new is:

l. The combination with a. machine for treating a strip of paper; of feed mechanism at one side of said machine; a tension device acting on the paper at this side of said machine; drawing mechanism at the other side of said machine, and a gravity roller resting on the strip and moving faster than the drawing mechanism.

2. The combination with a paper treating machine including a bed and a die, a walk ing beam for moving the latter, a crank shaft driven from a source of power, and a connecting rod between said walking beam and the crank on such shaft, said rod consisting of two tubular sections oppositely threaded at their contiguous ends, a rightand-left screw engaging said threads, and a hand wheel on the screw; of paper feeding mechanism at one side of said bed, paperdrawing mechanism at the other side of the bed, connections between said mechanisms, and driving means between said connections and said crank shaft.

3. The combination with a paper treating machine including a bed and a die, means for moving the latter, a crank shaft driven from a source of power, and a connecting rod between said means and the crank on such shaft; of paper feed mechanism at one side of said bed, paper-drawing mechanism at the other side of said bed, positive connections for causing said mechanisms to operate simultaneously, a ratchet wheel included in said connections, a toothed rim surrounding said wheel and having pawls engaging its teeth, a sector engaging the teeth of said rim, and connections between said sector and a second crank on the power-driven shaft.

at. The combination with a paper treating machine including a bed and a. die, a crank shaft driven from a source of power, and connections bet-ween said die and the crank on such shaft; of paper-feed mechanism at one side of said bed, paper-drawing mechanism at the other side of the bed, positive connections for causing said mechanism to operate siimiltaneously, a ratchet wheel included in said connections, a toothed rim surrounding said wheel and having )awls engaging its teeth, a sector engaging the teeth of said rim and pivoted in the framework, an arm projecting rigidly from said sector, a connecting rod pivoted at one end to said arm, a crank wheel on said power driven shaft, means for adjusting its wrist pin, and pivotal connections between the latter and the other end of said rod.

he combination with a machine for feeding a paper strip, the machine including a bed and a die, and a power-driven shaft for actuating said die; of a tension device at one side of the bed, a paper-drawing mechanism at the other side of the bed and including a drum and a roller, a toothed wheel, pawl-and-ratchct mechanism connecting said wheel with the axle of said drum, a toothed sector engaging the teeth on said wheel and pivoted in the framework, an arm projecting rigidly from said sector, a connecting rod pivotally engaging said arm at one end, a crank wheel on said power-driven shaft, means for adjusting its wrist pin, and pivotal connections between the latter and the other end of said connecting rod.

6. The combination with a machine for treating a paper strip, the machine including a frame, a platen, and a die, and a power-driven shaft for actuating said die; of a feed mechanism at one side of said platen, a drawing mechanism at the other side thereof, a shaft connecting said mechanisms, a brake consisting of a strap attached at one end to the frame and passing over said shaft and a weight hung on the other end of the strap, a ratchet fast on said shaft, a toothed rim surrounding said ratchet, spring-actuated pawls therein engaging said ratchet, a toothed sector engaging said rim and pivoted in the framework, and connections between said sector and the power mechanism whereby the feeding and drawing mechanisms are actuated in unison between the impulses of the treating machine.

7. The combination with a machine for treating a paper strip, the machine including a frame, a platen and a die, and a powerdriven shaft. for actuating said die; of a feed mechanism at one side of said platen, a drawing mechanism at the other side thereof, a shaft connecting said mechanisms, a brake consisting of a strap attached at one end to the frame and passing over said shaft and a weight hung on the other end of the strap, a ratchet fast on said shaft, a toothed rim surrounding said ratchet, spring-actuated pawls therein engaging said ratchet, a toothed sector engaging said pivoted rim and pivoted in the framework, an arm projecting from said sector, a crank wheel having a radially adjustable wrist pin, a connecting rod between it and said arm, and means for permitting the manual setting of said wrist pin.

8. The combination with a machine for treating paper, driving means therefor in cluding a shaft, and devices for moving the paper through said machine; of an actuating mechanism for said devices, a block having a wrist pin connected with said actuating mechanism, a wheel on said shaft and having a transverse guide in which said block is mounted, and means for moving the block in said guide to various distances from the center of said wheel, for the purpose set forth.

9. The combination with a machine for treating paper, driving means therefor includinoa shaft, and devices for moving the paper through said machine; of an actuating mechanism for said devices, a block having a. wrist pin connected with said actuating mechanism, a wheel having a transverse guide in which said block is mounted, means for adjusting said block within said guide, devices for actuating said adjusting means, a hand lever at the front of the machine, and connections between said devices and hand lever.

10. The combination with a machine for treating paper, devices for feeding the paper through it, and an actuating mechanism; of a block having a wrist pin connected with said actuating mechanism, a wheel having a radial guide in which said block is mounted, means for adjusting said block within said guide, a pinion included in said means and projecting laterally beyond the wheel, hand lever at the front of said machine, devices adapted to be moved into the path of said pinion, and connections between said devices and hand lever, for the purpose set forth.

11. The combination with a paper treating machine including a die and a bed, feeding and drawing mechanisms at opposite sides of said bed and each mechanism including a drum, and power means for driving said machine and mechanisms; of manually controlled means for permanently increasin or diminishing the degree of the feed, and means for temporarily retarding said feed.

12. The combination with a paper treating machine including a die and a bed, feeding and drawing mechanisms at opposite sides of said bed and each mechanism including a drum, and power means for driving said machine and mechanisms; of manually controlled means for permanently increasing or diminishing the degree of the feed, and means for temporarily accelerat ing said feed.

13. The combination with a paper treating machine including a die and a bed, feed ing and drawing mechanisms at opposite sides of said bed and each mechanism including a drum, and power means for driving said machine and mechanisms; of manu ally controlled means for permanently increasing or diminishing the degree of the feed, and hand wheels on the front end of the drum-shafts for temporarily retarding or accelerating said feed.

1%. The combination with a paper treats ing machine including a die and a bed, feeding and drawing mechanisms at opposite sides of said bed and each mechanism including a drum, and power means for driving said machine and mechanisms; of hand wheels on the front ends of the drum shafts for temporarily retarding or accelerating said feed.

15. The herein described cranl; wheel having a transverse guide across it, a block slit able therein, a wrist pin on said block, a screw swiveled in the rim of the wheel and threaded through said block, and means for rotating the screw in one direction or the other to adjust the position of said wrist pin.

16. The herein described crank wheel hav ing a transverse guide across it, a block slidable therein, a wrist pin on said block, a screw swiveled in the rim of the wheel and threaded through said block, a bevel gear fast on said screw and projecting through the guide, a stub shaft carried by the wheel at right angles to said screw and having a bevel gear engaging with that above mentioned, an adjusting pinion fast on the stub shaft, and inwardly facing toothed racks adapted to be thrown into engagement with opposite sides of said pinion as the main wheel revolves, for the purpose set forth.

17. The herein described crank wheel having a transverse guide across it, a block slid able therein, a wrist pin on said block, a screw swiveled in the rim of the wheel and threaded through said block, a beveled gear fast on said screw and projecting through the guide, a stub shaft carried by the wheel at right angles to said screw and having a bevel gear engaging with that above mentioned, an adjusting pinion fast on the stub shaft, a frame having its opposite sides curved and toothed and spaced apart a greater distance than the diameter of said pinion, a swinging arm carried in said frame, a spring for holding it in position to disengage the teeth from the pinion, and means for swinging the arm in either di rection, for the purpose set forth.

18. The combination with a machine for treatin a strip of paper; of feed mechanism at one side of said machine including a drum, a gravity roller resting thereon, and connections whereby the roller moves slower than the drum; drawing mechanism at the other side of said machine also including a drum, and power-driven actuating means for rotating said drums at the same speed.

19. The combination with a machine for treating a strip of paper; of feed mechanism at one side of said machine including a drum, a gravity roller resting thereon, and connections whereby the roller moves slower than the drum; drawing mechanism at the other side of said machine including a drum, a gravity roller resting thereon, and conn otions whereby the roller is moved faster than the drum; and power-driven actuating means for rotating said drums at the same speed.

lf'he combination with a machine for treating a strip 01" paper; of feed mechanism at one side otsaid machine including a drum; drawii'ig mechanism at the other side of said machine including a drum, a gravity roller resting thereon, and connections whereby the roller is moved faster than the drum; and power driven-actuating means for rotating said drums at the same speed.

21. The coniibination with a machine for treating a strip of paper; of iced mechanism at one side of said machine including a drum, a gravity roller resting thereon, connections whereby the roller moves slower than the drum; a tension device acting on the paper at the feed side of said machine; drawing mechanism at the other side of said machine including a drum, and powerdriven actuating means for rotating said drums at the same speed.

The combination with a machine for treating a strip of paper; of feed mechanism at one side of said machine including a (ii um, a gravity roller resting thereon, connections whereby the roller moves slower than the drum; a tension device acting on in t? the paper at the feed side 01 said machine; drawing mechanism at the other side of said machine including a drul'n, a gravity roller resting thereon, and connections whereby the roller is moved faster than the drum; and power-driven aituating means for retating said drums at the same speed.

l he combination with a machine tor treating a strip of paper; of feed mechanism at one side of said machine including a drum; a tension device acting on the paper at the :t'eed side 01' said machine; drawing mechanism at the other side of said machine including a drum, a gravity roller resting thereon, and connections whereby the roller is moved faster than the drum; and power driven-actuating means for rotating said drums at the same speed.

2a. The con'ibination with a machine for treating a strip of paper; of pmvendriven paper-drawing mechanism at one side of said machine, a paper-tension at the feed side of said machine, a drum between the latter and the tension and over which the paper moves, and a hand wheel for retarding the rotation of said drum.

25. The combination with a machine for treating a strin 01 paper; out powendriven paper-drawing mechanism at one side of said machine, a paper-tension at the feed side of said machine, a drum between the latter and the tension and over which the paper moves, gravity rollers resting on said drum, and means for manually retarding the rotation of said drum at will.

in testimony whereof we have hereunto set our hands in presence of the subscribing witnesses.

JUHI"? itloCOY. STEPHEN A. COPENHAFER.

Witnesses J. C. Eisnnntim'r, E. L. BOEMANN, R. D. MCCOY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ltatentil, Washington, I). C. 

